.wrap{
    margin: 100px auto;
    width: 400px;
    height: 400px;
    border: 5px solid black;
    border-radius: 50%;
    background-color: black;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
   
    transform: rotate(0deg);
    transition: all ease 3s 0.2s;
    &:hover{
        transform: rotate(1080deg);  
    }
    .black{
        width: 400px;
        height: 200px;
        background-color: black;
        border-radius: 200px 200px 0 0 ;
        position: relative;
        z-index: 1;
        .heiyuan{
            width: 200px;
            height: 200px;
            background-color: black;
            border-radius: 50%;
            position: absolute;
            right: 0;
            bottom:-50%;
            display: flex;
            justify-content: center;
            align-items: center;
            .baidian{
                width: 50px;
                height: 50px;
                background-color: aliceblue;
                border-radius: 50%;
            }
        }
    }
    .white{
        width: 400px;
        height: 200px;
        background-color: white;
        border-radius: 0 0 200px 200px;
        position: relative;
        .baiyuan{
            width: 200px;
            height: 200px;
            background-color: white;
            border-radius: 50%;
            position: absolute;
            left: 0;
            top:-50%;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 2;
        .heidian{
            width: 50px;
            height: 50px;
            background-color: black;
            border-radius: 50%;
            }
          
        }
    }
}